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20022009
most citedNear linear time algorithm to detect community structures in large-scale networks

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hep-th200934 cited

Kinks of open superstring field theory

Gianluca Calcagni, Giuseppe Nardelli

We construct approximate kink solutions of supersymmetric open string field theory at lowest level when non-local operators in the tachyon effective action are fully taken into acc…

hep-th2009264 cited

Cosmology of the Lifshitz universe

Gianluca Calcagni

We study the ultraviolet complete non-relativistic theory recently proposed by Horava. After introducing a Lifshitz scalar for a general background, we analyze the cosmology of the…

hep-th200936 cited

UV finiteness of Pohlmeyer-reduced form of the AdS_5xS^5 superstring theory

R. Roiban, A. A. Tseytlin

We consider the Pohlmeyer-type reduced theory found by explicitly solving the Virasoro constraints in the formulation of AdS_5xS^5 superstring in terms of supercoset currents. The…

hep-th200955 cited

Inflation with a Negative Cosmological Constant

Tirthabir Biswas, Anupam Mazumdar

We find a unique way of realizing inflation through cyclic phases in an universe with negative vacuum energy. According to the second law of thermodynamics entropy monotonically in…

hep-th200826 cited

Cyclic Inflation

Tirthabir Biswas, Stephon Alexander

We present an inflationary model that is geodesically complete and does not suffer from the transplanckian problem. In most inflationary models, massless (conformal) scalar field f…

hep-th200812 cited

Stable de Sitter Vacua in 4 Dimensional Supergravity Originating from 5 Dimensions

O. Ogetbil

The five dimensional stable de Sitter ground states in N=2 supergravity obtained by gauging SO(1,1) symmetry of the real symmetric scalar manifold (in particular a generic Jordan f…